can you hear the pump run when it is supposed to be draining?
this is a either a clogged or failed drain pump
usually with these it is the pump that needs replacing, its good that you can hear the click
that means its getting power
that pump is very easy to replace with only a few basic hand tools;-)
I can help you make the switch if you need me to
Are you in the UK?
the pump is at the bottom of the unit, its best replaced by removing the dishwaser and laying it on its back, much easier to do it that way
its a small electric motor connected to the drain line and the sump
you could do this with just the front kick plate removed as well
the best place to get the replacement is Espares phone: 0844 9777 888
it is much easier to do this if you lay the dishwasher on its back
are you still here?
but as I said, it would be best to pull out the dishwasher and lay it on its back to make this repair
its much harder to do by simply removing the front kick plate especially if you have never dont this before